We present a new way of managing file contents, its implementation and preliminary experimental results. The goal is to permit simultaneous read/writ- e accesses to different views on a file, in order to help in separating a user's concerns, even when they are not independent. Files are considered as mount point directories from which views on the files are accessible as subdirectories and files with read and write permissions. Views are designated with logical formulas describing desired properties of views. They contain those parts of the original file that satisfy the formulas. Properties are attached to parts of the file automatically via programs called transducers. A file system interface is used for querying views, navigating between views, and updating view contents.